Unique Pesticide Analysis Method
contributed by SCIEX |
Comprehensive Quantitation and Identification of Pesticides in Food Samples using LC-MS/MS with Scheduled MRM™, Fast Polarity Switching, and MS/MS Library Searching
Liquid Chromatography coupled to Tandem Mass Spectrometry (LC-MS/MS) is a widely used analytical tool for the screening of food residues and contaminants. Here, we present a new and unique method using QuEChERS extraction, separation using a polar embedded C18 phase, and MS/MS detection with highly selective and sensitive Multiple Reaction Monitoring (MRM) on an SCIEX QTRAP® 5500 system. The Scheduled MRM algorithm was used to obtain the best data quality and combined with fast polarity switching to cover the broadest range of pesticides possible. In addition MS/MS spectra were acquired to enable compound identification with highest confidence based on mass spectral library matching.
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